Pirates shot dead the captain and the chief engineer on a cargo ship off the coast of Nigeria in mid-February 2014, according to Cyrus Mody of the International Maritime Bureau.
The Royal Malaysian Navy has lost contact with one of its gunboats off the coast of Sabah.
Navy chief Abdul Aziz Jaafar in a Twitter posting last night confirmed the boat with seven crew members was lost during rough seas.
"Three Royal Malaysian Navy ships KD Lekiu (above), KD Paus and KD Serang have been tasked in the search and rescue (SAR) operation.
"The Royal Malaysian Air Force and the Malaysian Maritime Enforcement Agency are also assisting in the SAR operation," he said.
Abdul Aziz said the lost gunboat carried the pennant number CB204 and was led by Lieutenant Azri Bakar.